Capt. Jeffrey Juergens, commodore, Submarine Squadron 6, serves as the guest speaker during a change of command ceremony for the Virginia-class attack fast-attack submarine Pre-Commissioning Unit (PCU) Montana (SSN 794) at Naval Station Norfolk, July 16, 2021. During the ceremony, Cmdr. Jon Quimby relieved Capt. Michael Delaney as commanding officer of Montana. The change of command ceremony is a time-honored tradition that signifies a total transfer of responsibility, authority and accountability for the command. (U.S. Navy photo by Mass Communication Specialist 1st Class Alfred Coffield)